Shockproof guide ring

Abstract

The utility model relates to the field of guide rings for pistons, and provides a shockproof guide ring which comprises a guide ring body. The guide ring body comprises an outer ring guide ring and an inner ring guide ring, and the inner ring guide ring is arranged on the inner circumferential side of the outer ring guide ring in a sleeving mode. A groove is formed in the inner circumferential side of the outer ring guide ring, and the inner ring guide ring is arranged in the groove in a sleeved mode. An anti-vibration groove is formed in the inner wall of the groove, and an anti-vibration pad is arranged in the anti-vibration groove; the outer surface of the outer ring guide ring and the outer surface of the inner ring guide ring are coated with wear-resistant coatings; according to the utility model, the guide ring comprises the inner ring guide ring and the outer ring guide ring, and the radial anti-vibration pad and the axial anti-vibration pad are arranged at the joint of the inner ring guide ring and the outer ring guide ring, so that when the guide ring is subjected to unstable impact force, the anti-vibration pad and the axial anti-vibration pad are not damaged; and impact force can be effectively buffered under the action of the radial anti-vibration pad and the axial anti-vibration pad, so that the anti-vibration function of the guide ring is improved, and the movement stability of the guide ring and the piston rod is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of piston guide rings, in particular to a shock-proof guide ring. Background Art

[0002] A piston guide ring is a part used on the piston or piston rod of a hydraulic cylinder or a cylinder to support the movement of the piston or piston rod. It can prevent the piston or piston rod from coming into direct contact and friction with the cylinder body during movement, playing a role in protecting the cylinder body and the piston or piston rod from being damaged.

[0003] During the movement of the piston rod, it will be impacted by axial or radial forces, resulting in the vibration of the guide ring, thus affecting the unstable connection between the guide ring and the piston rod and causing the movement of the piston rod to change. Summary of the Utility Model

[0004] The utility model provides a shock-proof guide ring. By setting the guide ring to include an inner ring guide ring and an outer ring guide ring, and installing a radial shock-proof pad and an axial shock-proof pad at the connection between the inner ring guide ring and the outer ring guide ring, when the guide ring is subjected to unstable impact forces, the impact forces can be effectively buffered under the action of the radial shock-proof pad and the axial shock-proof pad, thereby improving the shock-proof function of the guide ring and ensuring the smooth movement of the guide ring and the piston rod.

[0005] The technical solution of the utility model is realized as follows:

[0006] A shock-proof guide ring, comprising: a guide ring body;

[0007] The guide ring body includes an outer ring guide ring and an inner ring guide ring, and the inner ring guide ring is sleeved on the inner peripheral side of the outer ring guide ring;

[0008] A groove is provided on the inner peripheral side of the outer ring guide ring, and the inner ring guide ring is sleeved in the groove;

[0009] A shock-proof groove is provided on the inner wall of the groove, and a shock-proof pad is arranged in the shock-proof groove;

[0010] A wear-resistant coating is coated on the outer surface of the outer ring guide ring and the outer surface of the inner ring guide ring.

[0011] Further, the cross-section of the groove is convex-shaped, and correspondingly, the cross-section of the inner and outer ring guide rings is convex-shaped;

[0012] The inner bottom of the groove is the bottom edge of the convex shape.

[0013] Further, the shock-proof groove includes a radial shock-proof groove and an axial shock-proof groove;

[0014] The radial shock-proof groove is arranged on the radial inner wall of the groove;

[0015] The axial shock-proof groove is arranged on the axial inner wall of the groove;

[0016] The shock-proof pad includes a radial shock-proof pad and an axial shock-proof pad;

[0017] The radial shock-proof pad is installed in the radial shock-proof groove;

[0018] The axial shock-proof pad is installed in the axial shock-proof groove.

[0019] Furthermore, a plurality of radial shock-proof grooves are provided, and one radial shock-proof pad is installed in each radial shock-proof groove;

[0020] A plurality of axial shock-proof grooves are provided, and one axial shock-proof pad is installed in each axial shock-proof groove.

[0021] In the present utility model, by setting the guide ring to include an inner ring guide ring and an outer ring guide ring, and simultaneously installing a radial shock-proof pad and an axial shock-proof pad at the connection between the inner ring guide ring and the outer ring guide ring, when the guide ring is subjected to an unstable impact force, the impact force can be effectively buffered under the action of the radial shock-proof pad and the axial shock-proof pad, thereby improving the shock-proof function of the guide ring and ensuring the smooth movement of the guide ring and the piston rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of a shock-proof guide ring in a specific embodiment of the present utility model;

[0024] Figure 2 For Figure 1 It is an exploded structural diagram of a shock-proof guide ring shown;

[0025] Figure 3 For Figure 1 、 Figure 2 It is a schematic structural diagram of a shock-proof guide ring shown;

[0026] Description of reference numerals: outer ring guide ring 1; groove 11; first wear-resistant coating 12; inner ring guide ring 2; second wear-resistant coating 21; shockproof groove 3; radial shockproof groove 31; axial shockproof groove 32; shockproof pad 4; radial shockproof pad 41; axial shockproof pad 42. Specific embodiments

[0027] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] In a specific embodiment of the present invention, see Figures 1 - 3 , a shockproof guide ring, comprising: a guide ring body;

[0029] The guide ring body includes an outer ring guide ring 1 and an inner ring guide ring 2, and the inner ring guide ring 2 is sleeved on the inner peripheral side of the outer ring guide ring 1;

[0030] A groove 11 is provided on the inner peripheral side of the outer ring guide ring 1, and the inner ring guide ring is sleeved in the groove;

[0031] A shockproof groove 3 is provided on the inner wall of the groove 11, and a shockproof pad 4 is provided in the shockproof groove 3. By providing a shockproof pad 4 at the connection between the outer ring guide ring 1 and the inner ring guide ring 2, the shock absorption function of the guide ring is improved, and the stability of the piston rod movement is ensured;

[0032] In addition, the guide ring is continuously subjected to friction during operation, so it is necessary to improve its wear resistance. Therefore, wear-resistant coatings are provided at all positions subject to friction. A first wear-resistant coating 12 is coated on the outer surface of the outer ring guide ring, and a second wear-resistant coating 21 is coated on the outer surface of the inner ring guide ring 2;

[0033] The outer surface of the outer ring guide ring 1 includes an outer side surface, an inner side surface, and the inner side surface of the groove;

[0034] The outer surface of the inner ring guide ring 2 includes an inner side surface and an outer side surface that cooperates with the groove.

[0035] In a specific embodiment of the present invention, see Figures 1 - 3 , the cross-section of the groove 11 is convex, and correspondingly, the cross-section of the inner and outer ring guide rings 2 is convex;

[0036] The inner bottom of the groove 11 is the bottom edge of the convex shape;

[0037] The inner ring guide ring 2 is covered inside the outer ring guide ring 1 and pressed together, which can effectively prevent separation between the two.

[0038] In a specific embodiment of the present invention, see Figures 1 - 3 , the shockproof groove 3 includes a radial shockproof groove 31 and an axial shockproof groove 32;

[0039] The radial shockproof groove 31 is arranged on the radial inner wall of the groove 11;

[0040] The axial shockproof groove 32 is arranged on the axial inner wall of the groove 11;

[0041] The shockproof pad 4 includes a radial shockproof pad 41 and an axial shockproof pad 42;

[0042] The radial shockproof pad 41 is installed in the radial shockproof groove 31;

[0043] The axial shockproof pad 42 is installed in the axial shockproof groove 32;

[0044] By providing the radial shockproof groove 31 and the axial shockproof groove 32, seismic resistance is provided in both the radial and axial directions, improving the stability of the guide ring during operation, and thus ensuring the normal operation of the piston rod.

[0045] In a specific embodiment of the present invention, see Figures 1 - 3 , a plurality of the radial shockproof grooves 31 are provided, and one of the radial shockproof pads 41 is installed in each of the radial shockproof grooves 31;

[0046] A plurality of the axial shockproof grooves 32 are provided, and one of the axial shockproof pads 42 is installed in each of the axial shockproof grooves 32.

[0047] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A shock-proof guide ring, comprising: Guide ring body; It is characterized in that: the guide ring body includes an outer ring guide ring and an inner ring guide ring, and the inner ring guide ring is sleeved on the inner peripheral side of the outer ring guide ring; A groove is provided on the inner peripheral side of the outer ring guide ring, and the inner ring guide ring is sleeved in the groove; Shock-proof grooves are provided on the inner wall of the groove, and shock-proof pads are provided in the shock-proof grooves; Wear-resistant coatings are coated on the outer surface of the outer ring guide ring and the outer surface of the inner ring guide ring.

2. The shock-proof guiding ring according to claim 1, characterized in that: The cross-section of the groove is convex-shaped, and correspondingly, the cross-section of the inner and outer ring guide rings is convex-shaped; The inner bottom of the groove is the bottom edge of the convex shape.

3. The shockproof guide ring according to claim 2, characterized in that: The shock-proof groove includes a radial shock-proof groove and an axial shock-proof groove; The radial shock-proof groove is provided on the radial inner wall of the groove; The axial shock-proof groove is provided on the axial inner wall of the groove; The shock-proof pad includes a radial shock-proof pad and an axial shock-proof pad; The radial shock-proof pad is installed in the radial shock-proof groove; The axial shock-proof pad is installed in the axial shock-proof groove.

4. The shock-proof guide ring according to claim 3, characterized in that: A plurality of radial shock-proof grooves are provided, and one radial shock-proof pad is installed in each radial shock-proof groove; A plurality of axial shock-proof grooves are provided, and one axial shock-proof pad is installed in each axial shock-proof groove.

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